LICHEN CANINUS, ORD. LIV. Alge. 807 
black pepper,’ was first recommended as a preservative against the 
rabies canina by Mr. Dampier, brother of the celebrated circum- 
navigator of that name; and by the authority of Sir Hans Sloane 
it was published i in the Philosophical Transactions.’ This powder 
was afterwards adopted in the London Pharmacopeeia in 1721, at 
the desire of Dr. Mead, who appears to have had repeated ex- 
perience of its good effects, and who declares that he had never 
known it to fail where it had been used, with the assistance of cold 
bathing before the hydrophobia came on. He directs the patient 
to be blooded to the extent of nine or ten ounces; afterwards a 
dram and a half of the powder is to be taken in the morning 
fasting in half a pint of cow’s milk warm, for four mornings suc- 
cessively, After these four doses are taken, the patient is directed 
to go into the cold bath eyery morning for a month, and then 
three times a week for a fortnight longer, 
On the character of Mead the pulvis antilyssus w was long retained 
in the London Pharmacopeeia; but on the revision of that book in 
1788 it was deservedly expunged, 
@ This was the original composition; but the quantity of pepper renderiag the 
medicine too hot, the powder was meee of two parts of the lichen and one of 
pepper. 
* Va, p. 49. In the History of the Royal Society we are told that a dog 
became rabid, and bit several other dogs belonging to the Duke of York ; but by 
the timely aiislaistration of this ae they were all preserved from ‘Scihutia: 
Vol. 492, and vol. 3. 19, 
